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<?php
namespace Illuminate\Bus;
use Carbon\CarbonImmutable;
use Closure;
use DateTimeInterface;
use Illuminate\Database\Connection;
use Illuminate\Database\PostgresConnection;
use Illuminate\Database\Query\Expression;
use Illuminate\Support\Str;
class DatabaseBatchRepository implements PrunableBatchRepository
{
/**
* The batch factory instance.
*
* @var \Illuminate\Bus\BatchFactory
*/
protected $factory;
/**
* The database connection instance.
*
* @var \Illuminate\Database\Connection
*/
protected $connection;
/**
* The database table to use to store batch information.
*
* @var string
*/
protected $table;
/**
* Create a new batch repository instance.
*
* @param \Illuminate\Bus\BatchFactory $factory
* @param \Illuminate\Database\Connection $connection
* @param string $table
*/
public function __construct(BatchFactory $factory, Connection $connection, string $table)
{
$this->factory = $factory;
$this->connection = $connection;
$this->table = $table;
}
/**
* Retrieve a list of batches.
*
* @param int $limit
* @param mixed $before
* @return \Illuminate\Bus\Batch[]
*/
public function get($limit = 50, $before = null)
{
return $this->connection->table($this->table)
->orderByDesc('id')
->take($limit)
->when($before, function ($q) use ($before) {
return $q->where('id', '<', $before);
})
->get()
->map(function ($batch) {
return $this->toBatch($batch);
})
->all();
}
/**
* Retrieve information about an existing batch.
*
* @param string $batchId
* @return \Illuminate\Bus\Batch|null
*/
public function find(string $batchId)
{
$batch = $this->connection->table($this->table)
->where('id', $batchId)
->first();
if ($batch) {
return $this->toBatch($batch);
}
}
/**
* Store a new pending batch.
*
* @param \Illuminate\Bus\PendingBatch $batch
* @return \Illuminate\Bus\Batch
*/
public function store(PendingBatch $batch)
{
$id = (string) Str::orderedUuid();
$this->connection->table($this->table)->insert([
'id' => $id,
'name' => $batch->name,
'total_jobs' => 0,
'pending_jobs' => 0,
'failed_jobs' => 0,
'failed_job_ids' => '[]',
'options' => $this->serialize($batch->options),
'created_at' => time(),
'cancelled_at' => null,
'finished_at' => null,
]);
return $this->find($id);
}
/**
* Increment the total number of jobs within the batch.
*
* @param string $batchId
* @param int $amount
* @return void
*/
public function incrementTotalJobs(string $batchId, int $amount)
{
$this->connection->table($this->table)->where('id', $batchId)->update([
'total_jobs' => new Expression('total_jobs + '.$amount),
'pending_jobs' => new Expression('pending_jobs + '.$amount),
'finished_at' => null,
]);
}
/**
* Decrement the total number of pending jobs for the batch.
*
* @param string $batchId
* @param string $jobId
* @return \Illuminate\Bus\UpdatedBatchJobCounts
*/
public function decrementPendingJobs(string $batchId, string $jobId)
{
$values = $this->updateAtomicValues($batchId, function ($batch) use ($jobId) {
return [
'pending_jobs' => $batch->pending_jobs - 1,
'failed_jobs' => $batch->failed_jobs,
'failed_job_ids' => json_encode(array_values(array_diff(json_decode($batch->failed_job_ids, true), [$jobId]))),
];
});
return new UpdatedBatchJobCounts(
$values['pending_jobs'],
$values['failed_jobs']
);
}
/**
* Increment the total number of failed jobs for the batch.
*
* @param string $batchId
* @param string $jobId
* @return \Illuminate\Bus\UpdatedBatchJobCounts
*/
public function incrementFailedJobs(string $batchId, string $jobId)
{
$values = $this->updateAtomicValues($batchId, function ($batch) use ($jobId) {
return [
'pending_jobs' => $batch->pending_jobs,
'failed_jobs' => $batch->failed_jobs + 1,
'failed_job_ids' => json_encode(array_values(array_unique(array_merge(json_decode($batch->failed_job_ids, true), [$jobId])))),
];
});
return new UpdatedBatchJobCounts(
$values['pending_jobs'],
$values['failed_jobs']
);
}
/**
* Update an atomic value within the batch.
*
* @param string $batchId
* @param \Closure $callback
* @return int|null
*/
protected function updateAtomicValues(string $batchId, Closure $callback)
{
return $this->connection->transaction(function () use ($batchId, $callback) {
$batch = $this->connection->table($this->table)->where('id', $batchId)
->lockForUpdate()
->first();
return is_null($batch) ? [] : tap($callback($batch), function ($values) use ($batchId) {
$this->connection->table($this->table)->where('id', $batchId)->update($values);
});
});
}
/**
* Mark the batch that has the given ID as finished.
*
* @param string $batchId
* @return void
*/
public function markAsFinished(string $batchId)
{
$this->connection->table($this->table)->where('id', $batchId)->update([
'finished_at' => time(),
]);
}
/**
* Cancel the batch that has the given ID.
*
* @param string $batchId
* @return void
*/
public function cancel(string $batchId)
{
$this->connection->table($this->table)->where('id', $batchId)->update([
'cancelled_at' => time(),
'finished_at' => time(),
]);
}
/**
* Delete the batch that has the given ID.
*
* @param string $batchId
* @return void
*/
public function delete(string $batchId)
{
$this->connection->table($this->table)->where('id', $batchId)->delete();
}
/**
* Prune all of the entries older than the given date.
*
* @param \DateTimeInterface $before
* @return int
*/
public function prune(DateTimeInterface $before)
{
$query = $this->connection->table($this->table)
->whereNotNull('finished_at')
->where('finished_at', '<', $before->getTimestamp());
$totalDeleted = 0;
do {
$deleted = $query->take(1000)->delete();
$totalDeleted += $deleted;
} while ($deleted !== 0);
return $totalDeleted;
}
/**
* Prune all of the unfinished entries older than the given date.
*
* @param \DateTimeInterface $before
* @return int
*/
public function pruneUnfinished(DateTimeInterface $before)
{
$query = $this->connection->table($this->table)
->whereNull('finished_at')
->where('created_at', '<', $before->getTimestamp());
$totalDeleted = 0;
do {
$deleted = $query->take(1000)->delete();
$totalDeleted += $deleted;
} while ($deleted !== 0);
return $totalDeleted;
}
/**
* Execute the given Closure within a storage specific transaction.
*
* @param \Closure $callback
* @return mixed
*/
public function transaction(Closure $callback)
{
return $this->connection->transaction(function () use ($callback) {
return $callback();
});
}
/**
* Serialize the given value.
*
* @param mixed $value
* @return string
*/
protected function serialize($value)
{
$serialized = serialize($value);
return $this->connection instanceof PostgresConnection
? base64_encode($serialized)
: $serialized;
}
/**
* Unserialize the given value.
*
* @param string $serialized
* @return mixed
*/
protected function unserialize($serialized)
{
if ($this->connection instanceof PostgresConnection &&
! Str::contains($serialized, [':', ';'])) {
$serialized = base64_decode($serialized);
}
return unserialize($serialized);
}
/**
* Convert the given raw batch to a Batch object.
*
* @param object $batch
* @return \Illuminate\Bus\Batch
*/
protected function toBatch($batch)
{
return $this->factory->make(
$this,
$batch->id,
$batch->name,
(int) $batch->total_jobs,
(int) $batch->pending_jobs,
(int) $batch->failed_jobs,
json_decode($batch->failed_job_ids, true),
$this->unserialize($batch->options),
CarbonImmutable::createFromTimestamp($batch->created_at),
$batch->cancelled_at ? CarbonImmutable::createFromTimestamp($batch->cancelled_at) : $batch->cancelled_at,
$batch->finished_at ? CarbonImmutable::createFromTimestamp($batch->finished_at) : $batch->finished_at
);
}
}